Make starship prompt remember several flags

Just calling `starship prompt` isn't enough. We need to pass several
flags like execution time and status. Also I realize this makes the
right prompt and continuation prompts not work but that's okay because
I don't use those.

.zshrc

@@ -43,7 +43,7 @@ _prompt () {
     fi
 
     # Echo main prompt
-    starship prompt
+    '/usr/bin/starship' prompt --terminal-width="$COLUMNS" --keymap="${KEYMAP:-}" --status="$STARSHIP_CMD_STATUS" --pipestatus="${STARSHIP_PIPE_STATUS[*]}" --cmd-duration="${STARSHIP_DURATION:-}" --jobs="$STARSHIP_JOBS_COUNT"
 }
 setopt prompt_subst